There are commercial grade machines that you can rent and run in your home for a day...you must stay out of the home for at least 24 hours. It will kill everything. I have heard that you need to remove your furniture & mattresses for sure or they will (desintergrate) sp?? They are typically used after floods. The fogging does not work. It just seems to kill the smell for two weeks. I had to move from my home of 9 yrs, the damage in the walls was more than the whole house was worth.